
Total Traffic Volume & Performance in Douglas County, Colorado
Traffic The average number of vehicles that travel each day over any road in the road network. | vehicles per day6,614 |
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Trucks The percentage of the total traffic volume composed of heavy vehicles. | 6.9% |
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Average travel time The average time of travel averaged among all vehicles traveling on the road network. | 30.9 min |
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Congestion ratio The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network. | 16.0% |
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Drivers’ average age Average age of residents in the geographic areas where the vehicle trips originated. | 44.8 yrs |
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Drivers’ average income Average income of residents in the geographic areas where the vehicle trips originated. | $147,999 |
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Our data shows 6,614 vehicles per day on the average road in Douglas County, Colorado, and 8,581,070 vehicle-miles traveled per day (≈3.1 billion per year) across its 850 miles of monitored roads. Trucks are a smaller part of the mix than across Colorado: 6.9% against 8.4%.
Busier roads than 86% of counties in Colorado
The average road in Douglas carries 6,614 vehicles per day, essentially matching the state average of 6,752. In total volume terms, its road network carries about 6.8% of Colorado's statewide total of vehicle-miles. By volume, Douglas's 6,614 vehicles per day outpaces 86% of counties in Colorado.
The average trip takes 30.9 minutes, 7% lower than the state level. 71% of counties in Colorado have a longer average travel time than Douglas's 30.9 minutes.
The congestion ratio of 16.0% is in line with the state level.
Highway vs. Non-Highway Traffic Analysis

Highway Traffic in Douglas County, Colorado
| Traffic | vehicles per day20,304 |
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| Trucks | 8.8% |
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| Average travel time | 39.0 min |
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| Congestion ratio | 32.7% |
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| Drivers’ average age | 44.6 yrs |
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| Drivers’ average income | $140,424 |
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Highways carry more than half of all travel in Douglas County, Colorado (57% of vehicle-miles). The average highway carries 20,304 vehicles per day, 281% more than the average non-highway road in the same area, which carries 5,331 vehicles per day.
Highways make up 22% of the monitored road miles (188 miles, 1,271 segments), so they carry more than their share: 4,912,989 vehicle-miles traveled per day (≈1.8 billion per year).
No more than 4 other counties in Colorado move more traffic on their highways.
More highway trucks than 91% of counties in Colorado
Highway truck concentration here runs 22% lower than the state average, at 8.8%. Trucks are a small share of a very large highway flow, so Douglas still moves heavy freight volumes alongside its passenger traffic.
74% of counties in Colorado see a higher highway truck share than Douglas's 8.8%. By raw truck volume, Douglas carries more highway trucks than 91% of counties in Colorado.

Non-highway Traffic in Douglas County, Colorado
| Traffic | vehicles per day5,331 |
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| Trucks | 4.3% |
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| Average travel time | 30.2 min |
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| Congestion ratio | 14.4% |
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| Drivers’ average age | 45.1 yrs |
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| Drivers’ average income | $154,386 |
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Local roads carry a significant share of travel in Douglas County, Colorado: 43% of all vehicle-miles. On the average non-highway road, that comes to 5,331 vehicles per day.
Spread over 662 miles and 13,563 segments, 78% of the road network, local roads carry a lighter load per mile: 3,668,081 vehicle-miles traveled per day (≈1.3 billion per year). Trucks make up 4.3% of non-highway traffic, about 1 in 23 vehicles.
The highest driver income of any county in Colorado
The concentration of trucks on non-highway roads is 51% lower than on highways.
At 14.4%, the non-highway congestion ratio matches the state level closely.
Trips here originate from the highest average driver income in Colorado, at $147,999. 73% of counties in Colorado have an older driver population than Douglas.